The result is pro. ;D
The sharpness in some spots is too high, but that's about it. That and the text. are the problems with me.
This pic explains a good way to find out where to put your text.
First, split the sig into 9 equal squares. That's called the rule of thirds. There's a button thing u can do in Phtosohp that splits the sig up evenly for you, I don'[t remember how to do it though. I just eyeball it when I do my sigs, rofl.

This sig was done by Kilik41. I don't remember where I met him, but I took his sig and put text on it, showing him where he should put his text. As you can see, he put his in the very corners of the sig.
The text is supposed to be artistic, and if it's not, then it still is. o.o Fancy text is cool, but normal is ok too.
The text isn't supposed to be more obvious than Yuna. It's supposed to be noticeable but not invisible. If it's gonna be hard to see, then leave it out altogether. I usually don't put text in my sigs cuz text can make or break a sig.
Anyway, the picture shows you where you would put the text in this Yuna sig. You don't ahve to put it exactly on the spots specified, just near those area. Doing so maximizes your flow's potential. The text is supposed to be noticeable in a way that you look at the text, and then it points towards your render (focal point) which is Yuna in this case.
Having the text too close to Yuna clutters the sig and offsets focal balance.